Code we share

Open source

We publish Flutter packages you can use and extend in your own apps. Explore their use cases, check requirements and read the documentation.

Dark Fox on pub.dev — in a new tab

Flutter / Dart / Swift / macOS / MIT

disk_kit

We use it in VulpShift — our macOS app for working with storage devices. The package provides disk operations, while the app combines them into a backup, format and restore workflow. Read how we combine Flutter, disk_kit and macOS.

A Flutter package for disk management and preparing installation media on macOS. It provides a Dart API and a native Swift implementation. It combines device discovery and volume operations with data copying and disk image writing.

  • Discover disks, partitions and volumes, and watch device changes.
  • Mount, unmount, eject and rename volumes.
  • Copy files and directories with file-level progress reporting.
  • Format external disks and volumes as exFAT, FAT32, APFS or HFS+.
  • Write IMG and USB-compatible hybrid ISO images with optional read-back verification.
  • Prepare Windows UEFI and macOS installation media.

The current release, 1.2.3, requires macOS 12+, Flutter 3.27+, Dart 3.6+ and execution outside App Sandbox. Windows and Linux implementations are planned; Windows installation media is prepared on macOS.

Large WIM files in the Windows installer require a separately supplied copy of wimlib.

The optional disk_kit_macos_extensions — on pub.dev, in a new tab adds integration with NTFS and ext2/ext3/ext4 formatting tools and checks volume access. It requires separately supplied tools; it does not install drivers or replace macOS support for these file systems.

Package and documentation — in a new tab Source code on GitHub — in a new tab

Flutter / UI / MIT

horizontal_compass

A widget displaying a horizontal scale with coloured segments and an indicator. It can operate within a fixed range or loop, for example when showing a heading or a position in a cyclic range.

  • Configure segments, colours, range and tick spacing.
  • Adjust dimensions, lines and indicator appearance.
  • Finite and infinite modes.

This is a UI component, not a reading from the device's compass. Your app supplies the value to display. Find API details and an example on pub.dev.

Package and documentation — in a new tab

Insights

How do you choose open source packages?

Licensing, requirements, maintenance and integration tests — learn what to check before adding a dependency to your app.

Read the article